Thanks for the feedback. I think the article was really trying to whet people's appetite for the hands on tutorial linked in the article. I wrote the blog post

Thanks for the feedback. I think the article was really trying to whet people's appetite for the hands on tutorial linked in the article. I wrote the blog post just to give people enough to: 1. Know they can actually store, query, and update JSON in PostgreSQL 2. Get curious and dig in deeper with the free hands on training.